Vybor i ocenka effektivnosti metodov nefteotdaci

This paper reviews an approach to three stage selection of EOR strategies. First the screening model allows for a fast first-order screening of key EOR applicability methods at given reservoir conditions using a multi-criterion model and distribution functions based on applicability ranges for critical reservoir parameters. On a second stage a model for oil recovery factor estimation based on the statistical data from projects carried out worldwide is applied. Finally, analytical methods could be used for quantitative analysis and production profile calculations for a wide range of key oil recovery methods. Analytical methods are limited by simplified representation of the reservoir and EOR processes; however solutions are exact and not affected by the numerical dispersion. A wide range of reservoir parameters and computed results enable the user to perform rapid and comprehensive reservoir analyses as well as sensitivity studies. This tool can be compared with a "compass" helping reservoir and petroleum engineers to identify and successfully implement EOR/IOR methods at their fields.